Thursday, April 24, 2014

Manhattan Schist

Grass, trees, Manhattan schist and tall buildings

This schist has a lot to do with what makes Manhattan...Manhattan. Lots of serious bedrock allowed the skyscrapers to be built without sinking. And the bedrock was extensive enough for tunnels to be drilled into it for crossings onto the island from under the rivers. When I'm in one of the tunnels I can't think about the fact that I'm under the waterway. That's too much to comprehend. The fact that the weight and pressure hasn't caused them to collapse so far doesn't make me feel that much better. There's always a first time!